Cosmic Odyssey is a GPT that is designed to create an interactive, personalized Sci-fi adventure for the user. This tool, built upon ChatGPT, offers an engaging experience where the narrative is driven by the user's input, creating a unique storytelling environment. With an emphasis on immersion, users are initially greeted with the message 'Star systems await, traveler! What name echoes across the cosmos for you?', which sets the tone and context for their customized space adventure. In terms of functionality, Cosmic Odyssey provides users with options such as the ability to start a new journey or define the story background themselves, thereby offering a high degree of user influence over the storyline. Hence, this tool is suitable for those with a penchant for story-telling, science fiction and role-playing games (RPG). The product requires a ChatGPT Plus subscription, suggesting advanced features and improved interaction quality. The interactive journey that Cosmic Odyssey offers makes it a unique tool for those seeking a creative and immersive Sci-fi interaction.